2211313333121 has 4 divisors (see below), whose sum is σ = 2224879672752. Its totient is φ = 2197746993492.

The previous prime is 2211313333093. The next prime is 2211313333127. The reversal of 2211313333121 is 1213333131122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211313333121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211313333127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783169571 + ... + 6783169896.

It is an arithmetic number, because the mean of its divisors is an integer number (556219918188).

Almost surely, 2^{2211313333121} is an apocalyptic number.

It is an amenable number.

2211313333121 is a deficient number, since it is larger than the sum of its proper divisors (13566339631).

2211313333121 is a wasteful number, since it uses less digits than its factorization.

2211313333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566339630.

The product of its digits is 1944, while the sum is 26.

Adding to 2211313333121 its reverse (1213333131122), we get a palindrome (3424646464243).

The spelling of 2211313333121 in words is "two trillion, two hundred eleven billion, three hundred thirteen million, three hundred thirty-three thousand, one hundred twenty-one".